Improvement in argand gas-burners



s. B. n. VANCE. ARGAND GAS BURNER,

. NL1-83Z36' I Paten ied Qu p-10,1876.

manners.

J/ XMEZS ROSGOOD 8: CO BOSTON.

4 UNITED STATES PATENT OFFICE.

SAMUEL B. H. VANCE, OF NEW YORK, N. Y., ASSIGNOR TO MITCHELL, VANCE &00., OF SAME PLACE.

IMPROVEMENT IN ARGAND GAS-BURNERS.

Specification forming part of Letters Patent No. 183,236, dated October10, 1876; application filed September 2-2, 1876.

To all whom it may concern Be it known'that I, SAMUEL B. H. VANCE, ofthe city, county, and State of New York, have invented a new and usefulImprovement in Argand Gas-Burner, of which the followin g is aspecification:

Figure l is a longitudinal section of an Argand gas -burner 'to whichmy. improvement has been applied. Fig. 2 is a detail cross-sec tion ofthe valve-stem, taken through the line a: 00, Fig. 1. i

Similar letters of reference indicate corresponding parts.

The objectiot' this invention is to furnish improved Argand gas-burnerswhich shall be so constructed as to prevent the hissing noise of thegas, and to enable the flow of gas, and, consequently, the amount oflight, to be regulated as desired.

The invention consists in the combination of the valve and valve-stem,provided with the spring and collar, with the base of an Argandgas-burner provided with the two shoulders, and having its upper endbeveled or inclined, and with the lever having the lower side of itsupper end beveled or inclined, as hereinafter fully described.

A represents the base of the burner, which is screwed upon the gas-pipe,and from the upper part of which two branches, B, lead to thering-chamber G, which forms the upper part of the burner, and through acircle of holes in the top of which the gas escapes, and is burned. Thebase A has a hole drilled in it from its lower end to the point-a Asmaller drill is then used to continue the hole to the point a and thehole is continued with a still smaller drill to the upper end of saidbase, so that two shoulders, a a will be formed in the interior of thebase. Holes are then drilled through the branches or arms B, which enterthe cavity of the base A a little below the upper shoulder a D is avalve, which has its seat upon the lower shoulder a, and the stem E ofwhich passes up through and projects above the upper end of the base A.Upon the stem E is placed a spiral spring, F, the lower end of whichrests upon the valve D. The upper end of the spring F rests against acollar, G, placed upon the upper part of the stem E, and which restsagainst the upper shoulder a. The spring F should be strong enough tohold the valve D down or open against the pressure of the gas.

The projecting upper end of the valve-stem E is flattenedupon one sideto fit into a similarly-formed hole in the upper end of the lever H, sothat the stem E may be turned by turning the said lever H to prevent thenut c, screwed upon the end of the said stem, from being screwed off bythe movements of the said lever. end of the lever H and the upper end ofthe base A are beveled or inclined, so that by turning the said lever Hthe valve D may be drawn up into its seat, to prevent the gas frompassing through the burner, or adjusted to allow any desired amount ofgas to pass through. A nick is formed in the edge of the valve D toallow enough gas to pass through to keep the flame alive, so that a fulllight may be obtained by simply turning the lever H to force down thevalve D.

Having thus described my invention, I claim as new and desire to secureby Letters Patente- The combination of the valve and valvestem D E,provided with the spring F and collar G, with the base A of an Argandgasburner, provided with theshoulders a a and having its upper endbeveled or inclined, and with the lever H, having the lower side of itsupper end beveled or inclined, substantially as herein shown anddescribed.

SAMUEL B. H. VANCE. Witnesses:

JAMES T. GRAHAM, O. SEDGWIGK.

The under side of the upper-

